In this episode of No Priors, Dr. Fei-Fei Li, a pioneer in computer vision and deep learning, discusses her new company, World Labs, and its focus on developing spatially intelligent AI through 3D world models. She defines spatial intelligence as the ability to understand, reason, interact with, and generate 3D environments, emphasizing its fundamental role in AI and its potential to revolutionize fields like design, navigation, and XR experiences. The conversation explores the challenges in creating realistic and plausible 3D world models, the importance of visual and spatial intelligence relative to language models, and the future of robotics, highlighting the need for diverse morphological forms and the underrated potential of simulation. Dr. Li also shares insights from her career, including the creation of ImageNet and the convergence of language and images through image captioning, and offers advice for aspiring AI researchers and entrepreneurs, emphasizing fearlessness and a human-centered approach to AI development.